Thermal and Stress-Strain State of Cast Bodies of Control Valves of 200 MW Power Units

• Date: 2020
• Main Authors: Chernousenko, O. Yu., Ryndiuk, Dmytro V., Peshko, Vitalii A.
• Format: Article
• Language: English; Russian
• Published: Інститут енергетичних машин і систем ім. А. М. Підгорного Національної академії наук України 2020
• Subjects: control valve; K-200-130 steam turbine; thermal state; temperature gradients; stress-strain state; UDC 621.165.62-192
• Online Access: https://journals.uran.ua/jme/article/view/212782
• Journal Title: Energy Technologies & Resource Saving

200 MW steam turbines of DTEK Lugansk TPP units have operated for about 305–330 thousand hours with a total number of starts from 1.438 to 1,704, as of the end of 2019. The term for extending the operation of high-temperature power equipment between scheduled preventive maintenances has expired. Whe...